:root {
      --primary: #ff4d2e;
      --primary-dark: #e03617;
      --secondary: #2563eb;
      --accent: #ffb800;
      --dark: #0f172a;
      --text-main: #1e293b;
      --text-muted: #64748b;
      --bg-page: #f8fafc;
      --bg-card: #ffffff;
      --border-color: #e2e8f0;
      --border-bold: #cbd5e1;
      --radius-sm: 8px;
      --radius-md: 14px;
      --radius-lg: 20px;
      --shadow-sm: 0 2px 4px rgba(0,0,0,0.04);
      --shadow-md: 0 8px 24px rgba(15,23,42,0.08);
      --shadow-hover: 0 16px 36px rgba(255,77,46,0.12);
      --max-width: 1200px;
      --transition: all 0.28s ease;
    }

    * {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      font-size: 16px;
    }

    body {
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
      background-color: var(--bg-page);
      color: var(--text-main);
      line-height: 1.6;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: var(--transition);
    }

    ul, ol {
      list-style: none;
    }

    .container {
      width: 100%;
      max-width: var(--max-width);
      margin: 0 auto;
      padding: 0 24px;
    }

    .section-wrap {
      padding: 72px 0;
      border-bottom: 1px solid #edf2f7;
    }

    .section-header {
      text-align: center;
      margin-bottom: 48px;
    }

    .section-badge {
      display: inline-block;
      padding: 6px 16px;
      background: #fff1ee;
      color: var(--primary);
      font-weight: 700;
      font-size: 0.875rem;
      border-radius: 999px;
      margin-bottom: 12px;
      border: 1px solid #fed7cc;
      text-transform: uppercase;
      letter-spacing: 0.5px;
    }

    .section-title {
      font-size: 2.25rem;
      font-weight: 800;
      color: var(--dark);
      line-height: 1.3;
      margin-bottom: 14px;
    }

    .section-desc {
      font-size: 1.05rem;
      color: var(--text-muted);
      max-width: 680px;
      margin: 0 auto;
    }

    /* 顶部导航 */
    .site-header {
      position: sticky;
      top: 0;
      background: rgba(255, 255, 255, 0.96);
      backdrop-filter: blur(12px);
      z-index: 1000;
      border-bottom: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .nav-bar {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
    }

    .nav-brand {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .ai-page-logo {
      height: 42px;
      width: auto;
      display: block;
    }

    .nav-brand-title {
      font-size: 1.35rem;
      font-weight: 900;
      color: var(--dark);
      letter-spacing: -0.5px;
    }

    .nav-brand-title span {
      color: var(--primary);
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 0;
    }

    .nav-item {
      padding: 8px 14px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      border-radius: var(--radius-sm);
    }

    .nav-item:hover {
      color: var(--primary);
      background-color: #fff5f3;
    }

    .nav-actions {
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 10px 22px;
      border-radius: var(--radius-sm);
      font-weight: 700;
      font-size: 0.95rem;
      cursor: pointer;
      border: 2px solid transparent;
      transition: var(--transition);
      white-space: nowrap;
    }

    .btn-primary {
      background-color: var(--primary);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(255, 77, 46, 0.35);
    }

    .btn-primary:hover {
      background-color: var(--primary-dark);
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(255, 77, 46, 0.45);
    }

    .btn-secondary {
      background-color: #ffffff;
      color: var(--dark);
      border-color: var(--border-bold);
    }

    .btn-secondary:hover {
      background-color: #f1f5f9;
      border-color: var(--dark);
    }

    .btn-contrast {
      background: linear-gradient(135deg, #2563eb, #1d4ed8);
      color: #ffffff;
      box-shadow: 0 4px 14px rgba(37,99,235,0.3);
    }

    .btn-contrast:hover {
      transform: translateY(-2px);
      box-shadow: 0 6px 20px rgba(37,99,235,0.4);
    }

    .nav-toggle {
      display: none;
      background: none;
      border: none;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--dark);
      padding: 6px;
    }

    /* 首屏 Hero - 无图片，纯CSS与高对比撞色 */
    .hero-section {
      background: linear-gradient(135deg, #fff7f5 0%, #fef3c7 45%, #eff6ff 100%);
      padding: 84px 0 72px 0;
      border-bottom: 2px solid #fed7cc;
      position: relative;
    }

    .hero-content {
      text-align: center;
      max-width: 900px;
      margin: 0 auto;
    }

    .hero-tagline {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: #ffffff;
      padding: 6px 18px;
      border-radius: 999px;
      border: 1px solid #fecdd3;
      box-shadow: var(--shadow-sm);
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--primary);
      margin-bottom: 24px;
    }

    .hero-title {
      font-size: 3rem;
      font-weight: 900;
      color: var(--dark);
      line-height: 1.25;
      margin-bottom: 20px;
      letter-spacing: -0.5px;
    }

    .hero-title .highlight {
      color: var(--primary);
      position: relative;
      display: inline-block;
    }

    .hero-subtitle {
      font-size: 1.2rem;
      color: #334155;
      line-height: 1.7;
      margin-bottom: 36px;
      max-width: 780px;
      margin-left: auto;
      margin-right: auto;
    }

    .hero-cta-group {
      display: flex;
      align-items: center;
      justify-content: center;
      gap: 16px;
      flex-wrap: wrap;
      margin-bottom: 48px;
    }

    .btn-hero-official {
      padding: 14px 34px;
      font-size: 1.1rem;
      background-color: var(--primary);
      color: #ffffff;
      border-radius: var(--radius-sm);
      box-shadow: 0 8px 24px rgba(255, 77, 46, 0.4);
      animation: pulseAttention 2.4s infinite;
    }

    @keyframes pulseAttention {
      0%, 100% { transform: scale(1); }
      50% { transform: scale(1.03); }
    }

    .hero-metrics {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 18px;
      margin-top: 16px;
    }

    .metric-card {
      background: #ffffff;
      padding: 22px 16px;
      border-radius: var(--radius-md);
      border: 1px solid #fed7cc;
      box-shadow: var(--shadow-sm);
      text-align: center;
      transition: var(--transition);
    }

    .metric-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
      border-color: var(--primary);
    }

    .metric-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--primary);
      line-height: 1.1;
      margin-bottom: 6px;
    }

    .metric-label {
      font-size: 0.875rem;
      font-weight: 600;
      color: var(--text-muted);
    }

    /* 平台介绍 */
    .intro-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .intro-item {
      background: var(--bg-card);
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 28px;
      transition: var(--transition);
      position: relative;
    }

    .intro-item:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-hover);
      transform: translateY(-4px);
    }

    .intro-icon {
      width: 48px;
      height: 48px;
      border-radius: 12px;
      background: #fff1ee;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 900;
      font-size: 1.25rem;
      margin-bottom: 20px;
    }

    .intro-title {
      font-size: 1.25rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .intro-text {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 模型矩阵胶囊条 */
    .model-pills {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      justify-content: center;
      margin-top: 32px;
      background: #ffffff;
      padding: 24px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .model-pill {
      background: #f1f5f9;
      color: #334155;
      font-size: 0.85rem;
      font-weight: 700;
      padding: 6px 14px;
      border-radius: 999px;
      border: 1px solid #e2e8f0;
      transition: var(--transition);
    }

    .model-pill:hover {
      background: var(--primary);
      color: #ffffff;
      border-color: var(--primary);
    }

    /* 服务与能力卡片 */
    .service-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .service-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 26px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .service-card:hover {
      border-color: var(--secondary);
      box-shadow: 0 12px 28px rgba(37,99,235,0.08);
      transform: translateY(-4px);
    }

    .service-badge {
      align-self: flex-start;
      font-size: 0.75rem;
      font-weight: 800;
      color: var(--secondary);
      background: #eff6ff;
      padding: 4px 10px;
      border-radius: 6px;
      margin-bottom: 14px;
    }

    .service-title {
      font-size: 1.2rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .service-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 18px;
    }

    .service-meta {
      font-size: 0.85rem;
      font-weight: 700;
      color: var(--primary);
      display: flex;
      align-items: center;
      gap: 6px;
    }

    /* 一站式创作特色管线 */
    .pipeline-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .pipeline-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid #fed7cc;
      padding: 30px;
      position: relative;
      overflow: hidden;
    }

    .pipeline-box::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 6px;
      height: 100%;
      background: var(--primary);
    }

    .pipeline-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 14px;
    }

    .pipeline-title {
      font-size: 1.35rem;
      font-weight: 800;
      color: var(--dark);
    }

    .pipeline-status {
      font-size: 0.8rem;
      font-weight: 700;
      padding: 4px 10px;
      border-radius: 999px;
      background: #ecfdf5;
      color: #059669;
    }

    .pipeline-body {
      font-size: 0.95rem;
      color: #475569;
      line-height: 1.65;
    }

    /* 行业方案展示 */
    .industry-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .industry-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 22px;
      text-align: left;
      transition: var(--transition);
    }

    .industry-card:hover {
      border-color: var(--primary);
      background: #fffbfb;
      transform: translateY(-3px);
    }

    .industry-name {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .industry-detail {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.55;
    }

    /* 标准化流程 */
    .step-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      position: relative;
    }

    .step-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 26px;
      text-align: center;
      position: relative;
    }

    .step-number {
      width: 44px;
      height: 44px;
      background: var(--dark);
      color: #ffffff;
      font-size: 1.2rem;
      font-weight: 900;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      margin: 0 auto 16px auto;
    }

    .step-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .step-desc {
      font-size: 0.9rem;
      color: var(--text-muted);
      line-height: 1.6;
    }

    /* 案例中心 & 真实物料图片 */
    .case-gallery {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
      margin-bottom: 32px;
    }

    .case-item {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .case-thumb-wrap {
      width: 100%;
      aspect-ratio: 16 / 9;
      background: #e2e8f0;
      overflow: hidden;
    }

    .case-thumb-wrap img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.4s ease;
    }

    .case-thumb-wrap:hover img {
      transform: scale(1.04);
    }

    .case-info {
      padding: 20px;
    }

    .case-tag {
      display: inline-block;
      font-size: 0.75rem;
      font-weight: 800;
      color: var(--primary);
      background: #fff1ee;
      padding: 3px 8px;
      border-radius: 4px;
      margin-bottom: 8px;
    }

    .case-title {
      font-size: 1.1rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 8px;
    }

    .case-text {
      font-size: 0.875rem;
      color: var(--text-muted);
      line-height: 1.5;
    }

    .case-square-showcase {
      display: grid;
      grid-template-columns: 320px 1fr;
      gap: 28px;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 28px;
      align-items: center;
      margin-top: 24px;
    }

    .case-square-img {
      width: 100%;
      border-radius: var(--radius-sm);
      overflow: hidden;
      aspect-ratio: 1 / 1;
      background: #f1f5f9;
    }

    .case-square-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .case-square-content h3 {
      font-size: 1.5rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .case-square-content p {
      font-size: 0.95rem;
      color: var(--text-muted);
      line-height: 1.65;
      margin-bottom: 16px;
    }

    /* 对比评测 - 突出 9.9分与五星 */
    .review-score-panel {
      background: linear-gradient(135deg, #1e293b, #0f172a);
      color: #ffffff;
      border-radius: var(--radius-md);
      padding: 36px 40px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 32px;
      flex-wrap: wrap;
      gap: 24px;
    }

    .score-left {
      max-width: 600px;
    }

    .score-badge {
      display: inline-block;
      background: var(--accent);
      color: #000000;
      font-weight: 900;
      font-size: 0.85rem;
      padding: 4px 12px;
      border-radius: 999px;
      margin-bottom: 12px;
    }

    .score-left h3 {
      font-size: 1.75rem;
      font-weight: 800;
      margin-bottom: 10px;
    }

    .score-left p {
      color: #94a3b8;
      font-size: 0.95rem;
    }

    .score-right {
      display: flex;
      align-items: baseline;
      gap: 12px;
      background: rgba(255,255,255,0.06);
      padding: 20px 32px;
      border-radius: var(--radius-md);
      border: 1px solid rgba(255,255,255,0.12);
    }

    .score-val {
      font-size: 3.6rem;
      font-weight: 900;
      color: var(--accent);
      line-height: 1;
    }

    .score-stars {
      color: #facc15;
      font-size: 1.3rem;
      letter-spacing: 2px;
    }

    .comparison-table-wrap {
      width: 100%;
      overflow-x: auto;
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      box-shadow: var(--shadow-sm);
    }

    .comparison-table {
      width: 100%;
      border-collapse: collapse;
      text-align: left;
      min-width: 650px;
    }

    .comparison-table th,
    .comparison-table td {
      padding: 18px 24px;
      font-size: 0.95rem;
      border-bottom: 1px solid #f1f5f9;
    }

    .comparison-table th {
      background: #f8fafc;
      color: var(--dark);
      font-weight: 800;
    }

    .comparison-table th.highlight-col,
    .comparison-table td.highlight-col {
      background: #fff8f6;
      color: var(--primary);
      font-weight: 700;
      border-left: 1px solid #fed7cc;
      border-right: 1px solid #fed7cc;
    }

    /* Token 比价看板 */
    .token-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .token-card {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 30px;
      text-align: center;
      transition: var(--transition);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
    }

    .token-card.popular {
      border: 2px solid var(--primary);
      position: relative;
      box-shadow: 0 12px 30px rgba(255, 77, 46, 0.1);
    }

    .popular-tag {
      position: absolute;
      top: -14px;
      left: 50%;
      transform: translateX(-50%);
      background: var(--primary);
      color: #ffffff;
      font-size: 0.75rem;
      font-weight: 800;
      padding: 4px 14px;
      border-radius: 999px;
    }

    .token-title {
      font-size: 1.3rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 10px;
    }

    .token-price {
      font-size: 2.2rem;
      font-weight: 900;
      color: var(--primary);
      margin: 16px 0;
    }

    .token-price small {
      font-size: 0.85rem;
      color: var(--text-muted);
      font-weight: 500;
    }

    .token-features {
      margin-bottom: 24px;
      text-align: left;
    }

    .token-features li {
      font-size: 0.9rem;
      color: #475569;
      padding: 6px 0;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .token-features li::before {
      content: "✔";
      color: var(--primary);
      font-weight: 900;
    }

    /* 加盟代理板块 */
    .partner-banner {
      background: linear-gradient(135deg, #fff1ee 0%, #fee2e2 100%);
      border: 2px dashed #fca5a5;
      border-radius: var(--radius-lg);
      padding: 44px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .partner-info h3 {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .partner-info p {
      font-size: 1.05rem;
      color: #4b5563;
      max-width: 640px;
    }

    /* 客户评价板块 (6条) */
    .review-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .review-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      padding: 24px;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: var(--transition);
    }

    .review-card:hover {
      border-color: var(--primary);
      box-shadow: var(--shadow-md);
      transform: translateY(-3px);
    }

    .review-body {
      font-size: 0.95rem;
      color: #334155;
      line-height: 1.65;
      margin-bottom: 20px;
      font-style: normal;
    }

    .review-author {
      display: flex;
      align-items: center;
      gap: 12px;
      border-top: 1px solid #f1f5f9;
      padding-top: 14px;
    }

    .author-avatar {
      width: 44px;
      height: 44px;
      border-radius: 50%;
      background: #fed7cc;
      color: var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1.1rem;
    }

    .author-name {
      font-size: 0.95rem;
      font-weight: 800;
      color: var(--dark);
    }

    .author-role {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* FAQ 折叠面板 */
    .faq-list {
      max-width: 900px;
      margin: 0 auto;
      display: flex;
      flex-direction: column;
      gap: 16px;
    }

    .faq-card {
      background: #ffffff;
      border: 1px solid var(--border-color);
      border-radius: var(--radius-md);
      overflow: hidden;
      transition: var(--transition);
    }

    .faq-card.active {
      border-color: var(--primary);
      box-shadow: var(--shadow-sm);
    }

    .faq-question {
      padding: 20px 24px;
      cursor: pointer;
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-weight: 700;
      font-size: 1.05rem;
      color: var(--dark);
      user-select: none;
    }

    .faq-question:hover {
      color: var(--primary);
    }

    .faq-toggle-icon {
      font-size: 1.2rem;
      color: var(--text-muted);
      transition: transform 0.25s ease;
    }

    .faq-card.active .faq-toggle-icon {
      transform: rotate(45deg);
      color: var(--primary);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease, padding 0.3s ease;
      background: #fbfcfe;
    }

    .faq-card.active .faq-answer {
      max-height: 300px;
      padding: 0 24px 20px 24px;
      border-top: 1px solid #f1f5f9;
    }

    .faq-answer p {
      font-size: 0.95rem;
      color: #475569;
      line-height: 1.65;
    }

    /* 最新文章与动态 */
    .article-wrap {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 32px;
    }

    .article-main {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 28px;
    }

    .article-links-box {
      background: #ffffff;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
      padding: 28px;
    }

    .article-links-title {
      font-size: 1.15rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 18px;
      padding-bottom: 10px;
      border-bottom: 2px solid #fed7cc;
    }

    .article-list {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .article-link-item {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.9rem;
      color: var(--text-main);
      padding: 10px 12px;
      border-radius: var(--radius-sm);
      background: #f8fafc;
      transition: var(--transition);
    }

    .article-link-item:hover {
      background: #fff1ee;
      color: var(--primary);
      transform: translateX(4px);
    }

    /* 需求匹配与表单 */
    .form-section-wrap {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 36px;
      background: #ffffff;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border-color);
      padding: 44px;
      box-shadow: var(--shadow-sm);
    }

    .contact-info-side h3 {
      font-size: 1.8rem;
      font-weight: 900;
      color: var(--dark);
      margin-bottom: 16px;
    }

    .contact-info-side p {
      font-size: 1rem;
      color: var(--text-muted);
      line-height: 1.6;
      margin-bottom: 24px;
    }

    .contact-meta-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      margin-bottom: 28px;
    }

    .contact-meta-item {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--dark);
    }

    .kefu-qrcode-wrap {
      display: flex;
      align-items: center;
      gap: 20px;
      background: #f8fafc;
      padding: 16px;
      border-radius: var(--radius-md);
      border: 1px solid var(--border-color);
    }

    .kefu-qrcode-img {
      width: 108px;
      height: 108px;
      border-radius: 8px;
      background: #fff;
      padding: 4px;
      border: 1px solid var(--border-bold);
    }

    .kefu-qrcode-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
    }

    .kefu-text {
      font-size: 0.9rem;
      color: var(--text-muted);
    }

    .kefu-text strong {
      display: block;
      font-size: 1rem;
      color: var(--dark);
      margin-bottom: 4px;
    }

    .form-side form {
      display: flex;
      flex-direction: column;
      gap: 18px;
    }

    .form-group {
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .form-group label {
      font-size: 0.9rem;
      font-weight: 700;
      color: var(--dark);
    }

    .form-control {
      width: 100%;
      padding: 12px 16px;
      border: 1px solid var(--border-bold);
      border-radius: var(--radius-sm);
      font-size: 0.95rem;
      outline: none;
      transition: var(--transition);
      background: #ffffff;
      color: var(--dark);
    }

    .form-control:focus {
      border-color: var(--primary);
      box-shadow: 0 0 0 3px rgba(255, 77, 46, 0.15);
    }

    textarea.form-control {
      resize: vertical;
      min-height: 100px;
    }

    /* 友情链接与页脚规范 */
    .site-footer {
      background: #ffffff;
      border-top: 1px solid var(--border-color);
      padding: 56px 0 24px 0;
      color: var(--text-main);
    }

    .footer-top {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 36px;
      margin-bottom: 40px;
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: var(--text-muted);
      margin-top: 14px;
      line-height: 1.6;
      max-width: 320px;
    }

    .footer-col h4 {
      font-size: 1rem;
      font-weight: 800;
      color: var(--dark);
      margin-bottom: 16px;
    }

    .footer-col ul {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col a {
      font-size: 0.875rem;
      color: var(--text-muted);
    }

    .footer-col a:hover {
      color: var(--primary);
    }

    .friendly-links-wrap {
      border-top: 1px solid #edf2f7;
      padding: 24px 0;
      margin-top: 24px;
    }

    .friendly-title {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--dark);
      margin-bottom: 12px;
    }

    .friendly-links {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .friendly-links a {
      font-size: 0.85rem;
      color: var(--text-muted);
      padding: 4px 10px;
      background: #f1f5f9;
      border-radius: 4px;
    }

    .friendly-links a:hover {
      color: var(--primary);
      background: #fee2e2;
    }

    .footer-bottom {
      border-top: 1px solid #edf2f7;
      padding-top: 24px;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-muted);
    }

    /* 浮动客服 */
    .floating-contact {
      position: fixed;
      right: 20px;
      bottom: 40px;
      z-index: 999;
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .floating-btn {
      width: 48px;
      height: 48px;
      border-radius: 50%;
      background: var(--primary);
      color: #ffffff;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 1.1rem;
      box-shadow: var(--shadow-md);
      cursor: pointer;
      border: none;
      transition: var(--transition);
      position: relative;
    }

    .floating-btn:hover {
      transform: scale(1.08);
      background: var(--primary-dark);
    }

    .floating-card {
      position: absolute;
      right: 58px;
      bottom: 0;
      background: #ffffff;
      padding: 16px;
      border-radius: var(--radius-md);
      box-shadow: 0 10px 30px rgba(0,0,0,0.15);
      border: 1px solid var(--border-color);
      display: none;
      width: 200px;
      text-align: center;
    }

    .floating-btn:hover .floating-card {
      display: block;
    }

    .floating-card img {
      width: 140px;
      height: 140px;
      margin: 0 auto 8px auto;
      display: block;
    }

    .floating-card p {
      font-size: 0.8rem;
      color: var(--text-muted);
    }

    /* 响应式适配 */
    @media (max-width: 1024px) {
      .hero-title {
        font-size: 2.4rem;
      }
      .intro-grid,
      .service-grid,
      .token-grid,
      .review-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .case-gallery {
        grid-template-columns: repeat(2, 1fr);
      }
      .industry-grid,
      .step-grid {
        grid-template-columns: repeat(2, 1fr);
      }
      .footer-top {
        grid-template-columns: 1fr 1fr;
      }
      .case-square-showcase {
        grid-template-columns: 1fr;
      }
    }

    @media (max-width: 768px) {
      .nav-links,
      .nav-actions .btn-secondary {
        display: none;
      }
      .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        width: 100%;
        background: #ffffff;
        border-bottom: 1px solid var(--border-color);
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
      }
      .nav-toggle {
        display: block;
      }
      .hero-title {
        font-size: 1.85rem;
      }
      .hero-metrics {
        grid-template-columns: repeat(2, 1fr);
      }
      .intro-grid,
      .service-grid,
      .token-grid,
      .review-grid,
      .pipeline-grid,
      .industry-grid,
      .step-grid,
      .case-gallery {
        grid-template-columns: 1fr;
      }
      .form-section-wrap {
        grid-template-columns: 1fr;
        padding: 24px;
      }
      .article-wrap {
        grid-template-columns: 1fr;
      }
      .review-score-panel {
        flex-direction: column;
        text-align: center;
        padding: 24px;
      }
      .score-right {
        margin: 0 auto;
      }
      .footer-top {
        grid-template-columns: 1fr;
      }
    }